When overtaking a competitor, the attacking party should only attempt to overtake in a corner if at least the front of his car is alongside the defending party when they arrive at the turn-in point of the corner.
SHOULD to me, implies a guideline.
The full rule:
When overtaking a competitor, the attacking party should only
attempt to overtake in a corner if at least the front of his car is alongside the defending party when
they arrive at the turn-in point of the corner. If the attacking party tries to make a move from further
back and makes contact with the defending party, the attacker will be held accountable. Conversely,
if the defending party does not give enough room for the attacking party when they arrive at the apex
of a corner side-by-side, ending in contact, the defending party will be held accountable.
To me, the rule means you should not attempt an overtake, it does not say MUST NOT. Rules above this one say must not. I see a difference in SHOULD NOT and MUST NOT.
What you are trying to say is as long as the defender makes it to the turn in point he does not have to defend at all, which makes no sense. IMO if Parisis had a defensive line through the corner (which he did not) it would have been a lot more difficult for De Wit to pass, and he would have had to on the outside.
To me the rule should only be used
1) as a guideline, because most people probably wouldn't have been able to pull this off and
most defenders wouldn't have left so much room.
2) Only be taken into account if there is contact, hence the expanded rule I posted. In the instance of contact, De Wit surely without a doubt be penalized.
The rule says nothing about no contact and trying the move from so far back.
The rules, from what I can find, say nothing about forcing another driver to take another line
without contact. If there was such a rule, aggressive driving that has a purpose of forcing another driver into a mistake would be deemed illegal as well. All this is part of racing.